下面列出了javax.swing.JWindow#setAlwaysOnTop ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public WindowNotification() {
m_window = new JWindow();
m_window.setAlwaysOnTop(true);
m_listener = new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
fireListeners(CLICKED);
if (m_closeOnClick)
removeFromManager();
}
};
setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
setPanel(new JPanel());
}
private void initializeSlider(TopicMapGraphPanel gp) {
int minValue = getMinValue(gp);
int maxValue = getMaxValue(gp);
int defaultValue = getDefaultValue(gp);
if(defaultValue < minValue) defaultValue = minValue;
if(defaultValue > maxValue) defaultValue = maxValue;
slider = new SimpleSlider(SimpleSlider.HORIZONTAL, minValue, maxValue, defaultValue);
sliderLabel = new SimpleLabel();
sliderPopup = new JWindow();
slider.setPreferredSize(new Dimension(120, 24));
slider.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
sliderLabel.setFont(UIConstants.smallButtonLabelFont);
sliderLabel.setPreferredSize(new Dimension(30, 24));
sliderLabel.setHorizontalAlignment(SimpleLabel.CENTER);
JPanel panel = new JPanel();
panel.setBorder(new LineBorder(UIConstants.defaultBorderShadow));
panel.setLayout(new BorderLayout(2,2));
panel.add(slider, BorderLayout.CENTER);
panel.add(sliderLabel, BorderLayout.EAST);
sliderPopup.setLayout(new BorderLayout(2,2));
sliderPopup.add(panel, BorderLayout.CENTER);
sliderPopup.setSize(150, 24);
// sliderPopup.addMouseListener(this);
sliderPopup.setAlwaysOnTop(true);
slider.addChangeListener(this);
slider.addMouseListener(this);
}
/**
* Creates the WindowGui
*
* @param icon
* @param head
* @param body
* @param posx
* @param posy
* @param backgroundcolor
* @param headerColor
* @param messageColor
* @return
*/
private static JWindow createWindow(Icon icon, String head, String body, int posx, int posy, Color backgroundcolor,
Color headerColor, Color messageColor) {
final JWindow window = new JWindow();
JPanel windowpanel = new JPanel(new GridBagLayout());
windowpanel.setBackground(backgroundcolor);
AWTUtilities.setWindowShape(window, new RoundRectangle2D.Float(0, 0, WIDTH, HEIGHT, 20, 20));
try
{
AWTUtilities.setWindowOpaque( window, true );
} catch ( UnsupportedOperationException ex ) {
Log.debug( "Unable to make window opaque: " + ex );
}
JLabel text = new JLabel("<HTML>" + body + "</HTML>");
text.setForeground(messageColor);
JLabel header = new JLabel(head);
header.setForeground(headerColor);
header.setFont(new Font(header.getFont().getName(), Font.BOLD, header.getFont().getSize() + 2));
windowpanel.add(new JLabel(icon), new GridBagConstraints(0, 0, 1, 2, 0.0, 0.0, GridBagConstraints.CENTER,
GridBagConstraints.BOTH, new Insets(5, 5, 5, 5), 0, 0));
windowpanel.add(header, new GridBagConstraints(1, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER,
GridBagConstraints.BOTH, new Insets(5, 5, 0, 5), 0, 0));
windowpanel.add(text, new GridBagConstraints(1, 1, 2, 1, 1.0, 1.0, GridBagConstraints.NORTHWEST,
GridBagConstraints.HORIZONTAL, new Insets(0, 5, 0, 5), 0, 0));
window.add(windowpanel);
window.setSize(WIDTH, HEIGHT);
window.setLocation(posx - (WIDTH + 5), posy + 5);
window.setAlwaysOnTop(true);
return window;
}
public void show() {
// Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
// if (focusOwner != null) focusRef = new WeakReference(focusOwner);
owner = ownerRef == null ? null : ownerRef.get();
ownerLocation = owner == null ? null : owner.getLocationOnScreen();
window = new JWindow(owner);
window.setType(Window.Type.POPUP);
window.setAlwaysOnTop(false);
window.setFocusable(true);
window.setFocusableWindowState(true);
window.setAutoRequestFocus(true);
window.getContentPane().add(content);
window.pack();
if (popupAlign == -1) {
window.setLocation(location.getLocation());
} else {
Dimension size = content.getSize();
int x;
switch (popupAlign) {
case SwingConstants.EAST:
case SwingConstants.NORTH_EAST:
case SwingConstants.SOUTH_EAST:
x = location.x + location.width - size.width + 1;
break;
default:
x = location.x + 1;
break;
}
int y;
switch (popupAlign) {
case SwingConstants.NORTH:
case SwingConstants.NORTH_EAST:
case SwingConstants.NORTH_WEST:
y = location.y - size.height + 1;
break;
default:
y = location.y + location.height + 1;
break;
}
window.setLocation(x, y);
}
window.setVisible(true);
Component defaultFocus = content.getFocusTraversalPolicy().getDefaultComponent(content);
if (defaultFocus != null) defaultFocus.requestFocusInWindow();
content.installListeners();
if (listener != null) listener.popupShown();
}
public void show() {
// Component focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
// if (focusOwner != null) focusRef = new WeakReference(focusOwner);
owner = ownerRef == null ? null : ownerRef.get();
ownerLocation = owner == null ? null : owner.getLocationOnScreen();
window = new JWindow(owner);
window.setType(Window.Type.POPUP);
window.setAlwaysOnTop(false);
window.setFocusable(true);
window.setFocusableWindowState(true);
window.setAutoRequestFocus(true);
window.getContentPane().add(content);
window.pack();
if (popupAlign == -1) {
window.setLocation(location.getLocation());
} else {
Dimension size = content.getSize();
int x;
switch (popupAlign) {
case SwingConstants.EAST:
case SwingConstants.NORTH_EAST:
case SwingConstants.SOUTH_EAST:
x = location.x + location.width - size.width + 1;
break;
default:
x = location.x + 1;
break;
}
int y;
switch (popupAlign) {
case SwingConstants.NORTH:
case SwingConstants.NORTH_EAST:
case SwingConstants.NORTH_WEST:
y = location.y - size.height + 1;
break;
default:
y = location.y + location.height + 1;
break;
}
window.setLocation(x, y);
}
window.setVisible(true);
Component defaultFocus = content.getFocusTraversalPolicy().getDefaultComponent(content);
if (defaultFocus != null) defaultFocus.requestFocusInWindow();
content.installListeners();
if (listener != null) listener.popupShown();
}
/**
*
* @param screenLoc
* @param calloutType
* @param forceShow
* if true then this method will always return true and try to
* show a window. If false then this method may decide to return
* false and not show the popup. For example: if the popup would
* fall far outside the window, this may return false in hopes
* that another attempt will get better coverage.
* @return
*/
private boolean showUsingWindow(Point screenLoc, CalloutType calloutType,
boolean forceShow) {
Point windowLoc = new Point(screenLoc);
if (calloutType == null) {
ui.setCalloutType(CalloutType.TOP_CENTER);
ui.setCalloutSize(0);
} else {
ui.setCalloutType(calloutType);
ui.setCalloutSize(CALLOUT_SIZE);
}
contents.validate();
contents.setSize(contents.getPreferredSize());
if (calloutType != null) {
Point calloutTip = ui.getCalloutTip(contents);
windowLoc.x -= calloutTip.x;
windowLoc.y -= calloutTip.y;
}
Rectangle windowBounds = new Rectangle(windowLoc, contents.getSize());
if (!forceShow && !isScreenRectVisible(windowBounds))
return false;
// closing and creating new windows to constantly reposition causes
// flickering; we should reuse the existing window if we're already
// visible.
JWindow window = null;
if (contents.getParent() != null) {
Window w = SwingUtilities.getWindowAncestor(contents);
if (w instanceof JWindow) {
JWindow jw = (JWindow) w;
Boolean b = (Boolean) jw.getRootPane()
.getClientProperty(PROPERTY_IS_QPOPUP);
if (Boolean.TRUE.equals(b)) {
window = jw;
}
}
if (window == null) {
hide();
}
}
if (window == null) {
window = createWindow();
}
if (isToolTip())
window.setFocusable(false);
window.setBounds(windowBounds);
window.setVisible(true);
window.setAlwaysOnTop(true);
window.toFront();
return true;
}
private void menuFullScreenActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_menuFullScreenActionPerformed
final AbstractEditor selectedEditor = this.tabPane.getCurrentEditor();
if (selectedEditor != null) {
final GraphicsConfiguration gconfig = this.getGraphicsConfiguration();
if (gconfig != null) {
final GraphicsDevice device = gconfig.getDevice();
if (device.isFullScreenSupported()) {
if (device.getFullScreenWindow() == null) {
final JLabel label = new JLabel("Opened in full screen");
final int tabIndex = this.tabPane.getSelectedIndex();
this.tabPane.setComponentAt(tabIndex, label);
final JWindow window = new JWindow(Main.getApplicationFrame());
window.setAlwaysOnTop(true);
window.setAutoRequestFocus(true);
window.setContentPane(selectedEditor.getContainerToShow());
endFullScreenIfActive();
final KeyEventDispatcher fullScreenEscCatcher = (@Nonnull final KeyEvent e) -> {
if (e.getID() == KeyEvent.KEY_PRESSED && (e.getKeyCode() == KeyEvent.VK_ESCAPE || e.getKeyCode() == KeyEvent.VK_F11)) {
endFullScreenIfActive();
return true;
}
return false;
};
if (this.taskToEndFullScreen.compareAndSet(null, (Runnable) () -> {
try {
window.dispose();
} finally {
tabPane.setComponentAt(tabIndex, selectedEditor.getContainerToShow());
device.setFullScreenWindow(null);
KeyboardFocusManager.getCurrentKeyboardFocusManager().removeKeyEventDispatcher(fullScreenEscCatcher);
}
})) {
try {
KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher(fullScreenEscCatcher);
device.setFullScreenWindow(window);
} catch (Exception ex) {
LOGGER.error("Can't turn on full screen", ex); //NOI18N
endFullScreenIfActive();
KeyboardFocusManager.getCurrentKeyboardFocusManager().removeKeyEventDispatcher(fullScreenEscCatcher);
}
} else {
LOGGER.error("Unexpected state, processor is not null!"); //NOI18N
}
} else {
LOGGER.warn("Attempt to full screen device which already in full screen!"); //NOI18N
}
} else {
LOGGER.warn("Device doesn's support full screen"); //NOI18N
DialogProviderManager.getInstance().getDialogProvider().msgWarn(this, "The Device doesn't support full-screen mode!");
}
} else {
LOGGER.warn("Can't find graphics config for the frame"); //NOI18N
}
}
}